On starting the instance, the FlexNet server indicated is queried to determine if sufficient
licenses are available.

Usage

The HCL Informix Server instance must obtain sufficient license resources to start up all the CPU
VPs specified in the onconfig file. It will fail to start if the licenses are not available. Any
subsequent dynamic change to the CPU VP configuration will require rechecking the license
entitlement with the FlexNet license server. The Informix instance will disable CPU VPs if there are
no available licenses.

Care should be taken with the VPCLASS and AUTO_TUNE parameters to ensure that the correct initial
request for CPU resource is made, and that any CPU VPs dynamically added by the system have
sufficient licenses and do not cause license starvation issues for other instances using the same
license server device.

If there are possible issues with license allocation between multiple Informix instances, using
the same FlexNet Server Device, then it is possible to tie the license allocations to specific
instances using FlexNet’s Reservation Group feature.

License allocations are returned when the Informix instance is stopped. If an instance fails, and
is unable to return the licenses, then the licenses will be re-allocated when the server is
restarted. If it is not possible to restart the server after a failure, and the licenses need to be
returned for use by another instance, then the onclean utility can be used to return the
licenses.

A Local License server cannot be installed on a virtual machine. The Informix instance, acting as
a Client Device, accesses the license server through HTTP to a nominated port number, the default
being 7070. Control and monitoring of the LLS through the REST interface is accomplished through a
separate HTTPS port.